Object

Cybermen Mathematical Activation Sequence

Complex mathematical puzzle on the Central Chamber’s control console, rooted in Whitehead logic, requiring conversion to binary notation. Solved by Klieg with the Doctor’s forced assistance to unlock the Cybermen Revival Mechanism.
2 appearances

Purpose

Unlock and activate dormant Cybermen technology via console levers

Significance

Ignites the power surge that revives the Cybermen, thrusting the Doctor into ethical conflict and propelling the expedition toward catastrophe, including Victoria's entrapment.

Appearances in the Narrative

When this object appears and how it's used

2 moments